Carbon stripping device



y 1938. J. w. ANDERSON 2,124,996

CARBON STRIPPING DEVICE Filed Sept. 27, 1935 5 Sheets-Sheet 1 5Sheets-Sheet 2 J. W. ANDERSON CARBON STRIPPING DEVICE Filed Sept. 27,1935 July 26, 1938.

llll/g Jill 26, 1938.

J. w. ANDERSON CARBON STRIPPING DEVICE Fil'ed Sept. 27, 1955 5Sheets-Sheet 3 y 1938. J. w. ANDERSON 2,124,996

CARBON STRIPPING DEVICE Filed Sept'. 27, 1935 5 Sheets-Sheet 4 July 26,1938. v J. w. ANDERSON CARBON STRIPPING DEVICE Filed Sept. 27, 1935 5Sheets-Sheet 5 Patented July 26, 1938 PATENT OFFICE CARBON STRIPPINGDEVICE James W. Anderson, Niagara Falls, N. Y., assignor to GilmanFanfold Corporation, Niagara Falls, N. Y., a. corporation of DelawareApplication September 27, 1935, Serial No. 42,449

- 27 Claims. (01. 197-426) This invention relates to typewritingmachines and equipment for typewrit'ing machines, and, with respect toits more specific features, it relates to the transfer or carbonequipment for such machines and to parts of typewriting machines intheir aspects of controlling the transferequipment and the worksheetsassociated with the transfer, or carbon, sheets.

One object of the invention is the provision m of a simple and practicalform of carbonstripper, or transfer-stripper, which'may be of thestandard length of carbon strippers hereto; fore employed fortypewriting machines, and which nevertheless hasa greatly increasedtrans- 'l5 ferring capacity and longevity.

Another object of the invention is the provision of a simple andeflicient form of carbonstripper employing a plurality of superposedcarbon sheets and wherewith the position of said sheets relative to eachother is under positive control and which is adapted to relieve manyobjectionable frictional or binding effects hitherto encountered inconnection with manifold equipment in typewriting machines.

Another object is the provision of a simple and practical form ofcarbon-stripper whereby the structure of typewriting machines of theWernery and Smith type, as exemplified in U. S. Patent No. 1,132,055,patented March 16, 1915, may be much simplified, as by omission of theplaten lifting or platen swinging feature and its attendant details.

Another object of the invention is the provision of an efiicientandsimple form of carbonshifter capable of use in machines of theWernery and Smith type aforesaid, whether said platen-lifting orplaten-swinging feature be or 'be not retained in such machine.

Another object of the invention is the provision of a simple andpractical construction of carbon, or transfer, equipment which readilyaccommodates itself to the many diiferent manipulations of theworksheets attendant upon the operation of typewriting machines.

Another object is to provide an eflicient, simple and practicalconstruction of carbon-stripping device useful in various differenttypes of typewriting machines.

Another object is the provision of a practical, simple and eflicientform of combined worksheets and carbon-stripper as a supply device fortypewriting machines.

Another object is the provision of a simple and practical form oftransfer, or carbon, sheet for use in typewriting machines.

' Another object of the invention is the provision of an efficient andpractical carbon-stripper for use in typewriting machines and havingsimple and improved features promotive of elimination of the bindingeffect of the carbon leaves on the worksheets and constructed so thatfresh carbon surfaces may readily be supplied by mere manipulation ofthe carbon leaves of the stripper itself and without the addition ofextra carbon leaves.

Other objects of the invention will be in part obvious and will in partappear hereinafter.

The invention accordingly comprises the features of construction,combination of elements and arrangement of parts which will beexemplifield in the construction hereinafter set forth, and the scope ofthe application of which will be indicated in the claims.

For a more complete understanding of the nature and objects of theinvention, reference is had to the following detailed description and tothe accompanying drawings in which:

Fig. 1 is a diagrammatic perspective view illustrative of an ordinarytypewriter carriage and platen and showing applicants carbon-stripperassociated with relatively superposed worksheets, as at the beginning oftyping the advance worksheet sections;

Fig. 2 is an enlarged, vertical cross-section through Fig. 1, showingthe worksheets and carbon-stripper, after being typed, advanced from theposition of Fig. 1, the stripper being in checked position;

Fig. 3 is a similar cross-section to Fig. 2, but shows the-feed pressurerolls depressed and the worksheets advanced relative to the stripper andthe most advanced typed section torn off;

Fig. 4 is an enlarged detail of Fig. 2 or Fig. 3;

Fig. 5 is a perspective view of one construction of carbon-stripperembodying the present invention, the thickness of the transfer, orcarbon. sheets being exaggerated for clearer disclosure;

Fig. 6 is a longitudinal section centrally of Fig. 5;

Fig. 7 is a perspective of a single strippersheet of Fig. 5, and lookingat the face 'of the sheet opposite from that seen in Fig. 5;

Fig. 8 is a perspective view illustrating a modifled construction ofstripper-sheet which may be employed, the thickness of sheets beingexaggerated as in the other figures, and a portion being cut out toillustrate detail construction;

Fig. 9 is a longitudinal sectional view as in Fig. 6, and showing thepath of the worksheets relative to the stripper-sheets. In Fig. 9, the

worksheets and carbon-stripper in general relation as a supply devicefor typewriting machines;

Fig. 10 illustrates in perspective some parts .of the checking device;

Fig. 11 is a transverse section of a portion of the stripper showing afastener element of the checking device I 1 Fig. 12 is a perspectiveview illustrative of worksheets associated for use as a supply fortypewriting machines embodying this invention;

Fig. 13 is a perspective view of a stripper sheet similar to that ofFig. 7 but slightly modified;

Fig. 14 is a perspective view of a portion of a stripper generallysimilar to that of Fig. 1 but modified in some features;

Fig. 15 is a perspective view of a stripper em bodying this inventionassociated with a machine of the type of the Wernery and Smith Patent1,132,055;

Fig. 16 is a vertical, longitudinal section through a portion of themachine of the Wernery and Smith patent with the stripper of the presentinvention embodied therein;

Fig. 17 is a view generally similar to Fig. 16 but illustrating thestripper and worksheets in a different position; and

Fig. 18 is a view showing a portion of the Wernery and Smith machineembodying the present invention, the platen being shown in full lines inlifted position, and the sheets being straightened out, as customary inthe Wernery and Smith machine.

Referring llOWjllOl'QSDBCifiCBJlY to the drawings, the platen carriageof an ordinary typewriting machine which is reciprocally shiftable inletter-spacing direction is illustrated in Fig. 1, the numeral Iindicating the side pieces of the carriage frame in which is journaledthe cylindrical platen 2, rotatively shiftable in forward line-spacingdirection by actuation of the linespace mechanism of the machine (notshown) and in the opposite direction by grasping the hand wheel or knob3. Numerals 4 indicate the lower feed rolls which are movable'toward andfrom the platen to grip and release the worksheets and any interposedtransfer sheets. The feed rolls 4 may be moved by turning the pivotedhand lever 5, in one direction, and the latter actuates cam 6 to shiftthe feed roll carrier I around its pivot 8 to lower the feedrolls andretain them in position in which the worksheets are released from thefeed-grip of the platen and these feed rolls (see Fig. 3). Actuation ofthe lever 5 in the opposite direction shifts or turns cam 6 in theopposite direction permitting spring 9 to shift the feed roll carrier indirection to lift the feed rolls 4 into worksheet-gripping cooperationwith the platen for feeding the gripped worksheets when the platen isrotated in either direction (see Fig. 2). A type bar of usualconstruction and operation is indicated for typing the worksheets at thetyping line of the machine, shown at I0. As the construction andoperation of ordinary typewriting machines are well known, it is deemedunnecessary to illus-v It is also to be under}- stood that the machineparts herein illustrated" trate the entire machine.

are merely exemplary and indicative of parts of indicates the rear papertable of the machine, which may have a rounded upper end I2.

I The paper record sheets or strips, herein referred to generally asworksheets, are continu ous and may-be as long as desired. The supply ofworksheets may come from any suitable source, .as from a roll or rolls,or from a pack or packs of zigzag folded worksheets. In Fig. 12, threeworksheets I3 are shown in superposed relation coming from a zigzagsupply pack I4, in which latter the three worksheets are interfolded asa unit in a zigzag manner, heretofore well known. Each worksheet ispreferably divided into successive sections by a longitudinal series oftransverse, equi-spaced weakening lines I5, which may be perforationswhereby the sections may readily be torn apart. Or a knife ortearing-bar may be employed. Though three worksheets are illustrated, itwill be understood that a greater or lesser number may be employed. Inthe usual and preferred practice, each worksheet has a longitudinalseries of similar printed forms I6. For the typing operation, aplurality of the worksheets are superposed with the printed forms andweakening lines of the different sheets in registry in superposedrelation so that typing on the original worksheet may be duplicated inthe same relative position on underlying worksheets and so that theweakening or tear-off lines I5 of different worksheet sections willarrive in substantial registry at tearoff position in the typewritingmachine.

A feature of the invention concerns the provision of a carbon stripper,the carbon or transfer sheets of which may be of merely normal lengthbut also may be shifted about so as to be used either end foremost andthus provide for utilizing the fresh transfer material of one transfersection of the transfer sheet when that of the other transfer sectionhas become depleted. In the preferred construction, the stripperincludes a plurality of relatively superposed carbon, or transfer,sheets II, each of which may be merely an integral transfer, or carbon,sheet, of any of the usual materials heretofore employed fortransferring typing. The ordinary manifolding paper coated withcarbontransfer material, heretofore commonly used in typewritingmachines, is suitable for the purpose.

In order to avoid certain binding effects on the worksheets, and topromote the shifting about of the stripper-sheets, as will hereinafterappear, the present invention contemplates threading the underlyingworksheets through an aperture or opening in the stripper intermediatethe fore and aft ends thereof. As shown in Fig. 5, each stripper-sheet,or transfer-sheet II, has an opening or aperture I8, for threading theunderlying worksheets therethrough, and the transfer sheets I! areattached together so as to control the relation of the apertures I8 toeach other and also the relation of the transfer, or stripper, sheetsII, to each other, as will hereinafter appear. As it is designed toprovide for easy relative shift movement between the transfer sheets andthe worksheets threading through theapertures I8, said apertures shouldbe of suflicient extent both longitudinally and transversely to admit ofthe free and unobstructed passage of a relatively large number ofworksheets which may be employed. The dimensions of the apertureslongitudinally of the sheets may be relatively larger. than required foreasy passage of worksheets, and it is preferred to have the transversedimension somewhat comparative but greater than the width of the .is ofarea sufficient-for manifolding cooperation with a worksheet section orprinted form l6, ahead of the aperture so the operator may rely uponobtaining copy on underlying worksheets of entries typed on the originalworksheet. While it is preferred that the transfer area shall becoextensive with the stripper-sheets ll, both lengthwise and widthwise,it is to be understood that some departure from complete coating ispermissible undercertain conditions, as where the entire length ofprinted forms it is not to be typed. It is a distinct and importantadvantage, however, to employ stripper-sheets H which are completelycoated with transfer material throughout, as such sheet material isreadily available. And in conjunction with the apertures l8,complication in operation of the stripper is avoided.

When the apertures l8 are made within the transfer or carbon area of anintegral transfer sheet, and completely through the sheet, asillustrated in Fig. 5, there is assurance that these apertures it arebonded fore and'aft by transfer material, which latter will lie close tothe edges of the apertures in each sheet, so that manifolding typing maybe done as close to the edge of the'aperture as desired. Also, as theseapertures are at times concealed, it is preferred that the fore end ofthe aperture register with the weakening line I 5 or be close theretoduring typing so that the operator, by observing the position of theweakening line it: as the latter approaches the typing line, may beguided as to the approach of the aperture to the typing line.

As illustrated, the stripper-sheets are attached together and provide acompact, unitary 'pack of relatively superposed manifolding transfersheets. Any means lending itself to the operation "of the invention maybe used for securing the transfer sheets together. As shown in thedrawings, the stripper-sheets are firmly connected together aft of theapertures by cooperative snap-fastener members 2i and 22, the headedfastener pins 2t passing through fastener openings 23 in the superposedstripper-sheets and being removably gripped and'retained in theresiliently acting fastener sockets 22. These fastener members 2E and 22may be of known construction and made of relatively rigid metal. Theysecure the transfer sheets together against substantial longitudinalmovement relative to each other; they maintain the apertures It atpredetermined distances from the line of attachment between the transfersheets when the stripper is in operative relation and they control therelation of the apertures of different transfer sheets to each other.

As illustrated, the apertures it of different transfer sheets are insuperposed registry and such is the preferred arrangement, as it issimple and makes for convenient threading of the worksheets .through thedifferent transfer sheets and through the stripper. However, otherrelative positions of the apertures may be employed within the scope ofthis invention (see Fig. 14).

A device or means is provided for checking, or arresting, the advance ofthe transfer sheets if in their course around the 'platen.- Within thebroader aspects of this invention, the checking device may take numerousforms. A practical construction may include the relatively rigid bar 25which is detachably secured or connected to the pack of transfer sheetson the platen-side of the latter. The bar 25 is preferably disposed atthe end of the aft sections 20, of the pack and remote from theworksheet-threading apertures l8. As illustrated this bar 25 serves as amounting or carrier for the fastener sockets 22, the latter beingsuitably secured to bar 25. The checking device may also include aworksheet guiding and supporting device including the relatively rigidplate or member 26 having recurving ends 271, on which latter thefastener-pins it may be mounted as illustrated. Member 26 provides aloop through which all the relatively superposed worksheets loosely passon their approach to the apertures H8. The bar 25 and plate 26 eachprovide also for bracing the pack of transfer sheets transversely whenattached to the pack.

At each of the opposite ends of each transfersheet If is a foldable,transversely'disposed extension 28 integral with the sheet t'l. Thisextension may be folded to position opposite the main body of this sheetH, as on the dotted line 29, at which the sheet ll may be creased ifdesired. The so folded extension 28 is shown in Figs. 6 and 9, thefastener openings 23 being so located on opposite sides of the lineoffold as to register with each other after the extension is folded. Thefastener pins 2i pass through the contiguous folded ends of therelatively superposed transfer sheets H. The length of thestripper-sheets or transfer-sheets, in the preferred embodiment of theinvention, should be sufficient to provide a foldable extension 28 ateach end of the sheets H in addition to the operative length of the twotransfer sections 99 and 2t.

The preferred course or path of the worksheets coming from the pack M orother supply is readily understood from the drawings. The superposed,continuous worksheets may pass through the aforesaid loop and runbeneath or outside the rear or aft sections N, of all the transfersheets. The upper worksheet it is then threaded through the apertures soas to be adapted to lie against the cylindrical or curved platen 2 andopposite the fore section it of j the immediately adjacent transfersheet if. The

intermediate worksheet i3 is threaded through I sheet may' continue itsposition opposite to but outside the fore sections iii of both transfer\sheets without entering the apertures it.

.The assembled worksheets and stripper afore described provide amanifolding supply device for introduction to and use in typewritingmachines. Having introduced the advance ends of the worksheets andinterleaved fore sections of the transfer sheets between the platen 2and feed rolls 6, the stripper and worksheets will occupy typingposition for manifolding substantially as shown in Fig. l. Preferablythe advance edges 30' of the worksheets will be arranged sufficientlyahead of the advance edges of the transfer sheets ill-as to permit theworksheets to be grasped as a unit without grasping the transfer sheets.But these advance edges may be otherwise related.

Typing now begins, the typing line being indi-- cated by the arrow 3|.Imprint on the original worksheet will be effected by the usual.typewriter ink ribbon and line spacing will be accomplished in themanner and by themechanism well known in typewriting machines. 'Aslinespacing proceeds, the checking-device also advances with thetransfer sheets l1 and may ride over the end If of the rear paper tableto position between this table and the platen, and until further advanceof the transfer sheets is checked or arrested by the platen and papertable preventing further advance of the checking device. The operatormay effect the aforesaid operations by the usual line spacing mechanismor by grasping and pulling the worksheets forward. As linespacingproceeds the apertures l8. also advance or shift around the platen 2toward the typing or printing line, 3l.'

Having finished typing on the advance set of worksheet forms, it will bedesired to then dispose the transfer sheets in interleaved relation withthe succeeding set of worksheet forms. In the conditions prevalent intypewriting machines having curved platens, the path of the worksheetsand transfer sheets is a curved path around the platen. When thetransfer sheets are checked as aforesaid, and it is attempted then toadvance the worksheets to bring the succeeding set of worksheet forms tointerleaved manifolding relation with the fore sections of the transfersheets, said fore sections, being curved, cooperate with the platen tobind the underlying worksheets so strongly that advance shift of theworksheets relative to the transfer sheets may not be effected so longas said binding effect prevails. One of the important objects of thepresent invention is to relieve or entirely remove said binding effecton the worksheets, so that the latter may be grasped at their ends andreadily advanced relative to the transfer sheets thereby to interleavethe transfer sheets with the succeeding set of worksheet forms orworksheet sections next to be typed.

In Fig. 2, the numeral 32 indicates an advance ing relation with thefore sections H of trans fer sheets H, as shown in Fig. 3. Thereupon,

the set 33 may be torn-01f or sheared from the continuous worksheet onweakening lines i5. Preliminary to advancing or forwardly shifting theworksheets relative to the transfer sheets at the platen from the Fig. 2relation, the foresections i9of the transfer sheets are disposed so thatthe portions 3f thereof forming the advance boundaries of the aperturesi8, lie substantially in a line tangent to'the platen at the point wherethe worksheets are to be advanced relative to the transfer sheets. Theline of pull, or pullline, in advancing the worksheets relative to thetransfer sheets, may be straight .up, as in Figs. 2 and 3, or, inclinedeither rearwardly or forwardly cross-wise of the platen 2, and the tan-=gent point on the platen may be at diflerent locationscircumferentiallyof its curved surface, dependent on. the direction of said pull-line.

.Said pull-line is usually straight, adjacent the advance edges of theapertures, and the transfer=sheet areas or sections 34 immediately aheadof 'the apertures lie parallel to this pull line.

When the advance ends' of the apertures reach i said tangent point thebinding effect of the transfer-leaves on the worksheets is greatlyrelieved, as the worksheets thread through the stripper-sheets ortransfer-sheets to the outside of the transfer leaves, and nosubstantial curved area of the transfer leaves is bound by the platen.

The checking device hereinbefore mentioned may be disposed relative tothe transfer leaves I! so as to check advance shift of the transfer orcarbon sheets at or after the advance boundaries or edges of theapertures reach said tangent relation. And in practice the apertures l8are so related to the worksheet forms that manifold typing of a completeset of forms may be effected before the apertures l8 reach the typingline and before the checking device .is arrested by the platen and rearpaper table. Having finished typing, whether the whole or part of thelength of a set of worksheet forms, the operator advances the assembledworksheet and transfer sheets, as a unit, until the transfer sheets arechecked. This may be done either by rotating the platen by its handle 3,or by pulling the assembled sheets. When checked the apertures arepreferably above the typing line 3|, as shown in Figs. 2 and 3, and thesubsequent pull on the worksheets should be in a direction not tocausesufiicient curving around and against the platen of the worksheetsand fore sections of transfer sheets ahead of the apertures l8 torestore any substantial binding effect on the worksheets. By securingthe transfer sheets together, the relation of the apertures 18 ofdifferent sheets to the tangent point and line of pull is controlled.

In the Fig. 3 position the worksheets have been pulled or shifted aheadas described above, while the stripper-sheets are checked. During suchshift the feed pressure rolls 4 are in their lower or releasingposition, having been previously shifted by the operator.

Both the fore and aft sections of the transfer leaves have transfermaterial for manifolding, and the length of these sheets and dispositionof transfer material thereon are such that they may be secured orattached together and also disposed relative to the worksheets witheither of the ends of either transfer sheet in advance relation to itsopposite end. The stippling,

Figs. 1, 5 and 8, indicates the transfer face of the sheets. Ordinarily,and as shown, the transfer material is conflned to the faces of thetransfer leaves that face the platen 2, but it may be on both faces oron the front face only, though the latter are not preferred. Both thefore and aft sections of the transfer leaves being manifolding sections,not only do these leaves provide a much greater length of transfermaterial for the stripper withoutrequiring any increase in the length ofthe stripper leaves, but the leaves of the stripper may be confined toordinary carbon or transfer leaf material such as the thin. carbon paperof commerce, so that practically the full lengthof the stripper is ofmanifolding material usable for copyingimprint of typing. v

By means of a stripper-sheet having the transfer material at each side,fore and aft of the apertures, it will be perceived that either thesection of stripper in advance of where the worksheet threads throughthe aperture or the section 4 inthe rear thereof, may be disposed inmanifolding relation to the worksheet, as selected, or when the advancetransfer section becomes depleted. The provision of attaching thechecking device to the stripper-sheets I], either fore or aft of theedges of the apertures 3, enables the stripper to be shifted end for endso that either section of the stripper-sheets may be interleaved withthe worksheets, as shown, for instance, in Figs. 1, 2 and 3, the othersection of the stripper taking up position outside and above theworksheets, as also illustrated in the same figures. Thus, means isprovided cooperable for attaching the stripper-sheets to the stripper ineither of two positions, in one of which it is in reverse positionrelative to its other position, and in each of such positions, the foreand aft transfer sections respectively will lie at opposite sides of aworksheet threading through the apertures. Furthermore, by disposing theaperture centrally of the stripper-sheets, the checking device may belocated at a predetermined distance from the advance edge of theaperture in either the direct or reversed position of the stripper. Andit will be observed that in either the direct or reversed relation ofthe stripper-sheets, the position of the apertures therein is controlledby the checking device in its relation relative to the tangentpoint andthe pull-line hereinbefore referred to. Whereas in this description, thesections I9 have in the main been termed the fore or advance sections,and the sections 20, the aft or rear sections, it is to be understoodthat these terms relate to the relative disposition of said sections asassembled for operation in the typewriting machine, or in the supplydevice, and that either section may be related as an advance section,

' the other section thus becoming related as the rear section.

In case of contemplated wear on the fore and aft edges of the aperturesi8, a wear-protective layer 35 may be applied close to' the fore and aftbounding margins .of these apertures, and on the face oppositethe-transfer face. This layer 35 may be of very thin, flexible paperpasted to the sheets I! and lying close to and preferably flush with thesaid fore and aft edges, as indicated in Fig. 7. In Fig. '7 it isobserved that the thickness of the transfer sheet and of thewear-protective layer thereon, has been exaggerated for the purpose ofclearer disclosure.

It will be understood that other forms of stripper embodying the generalprinciple described herein are within the purview of this invention.

For instance, instead of providing fore and aft sections of thestripper-sheet as an integral sheet, they may be fabricated from.whollyvseparate sheets, as in Fig. 8, where the numeral, 36 indicates aseparate and individual transfer sheet attached to'the equally separateand individual transfer sheet or section 31, by short strips of thin,flexible paper 38, the strips 38 being pasted to the back of therespective sections 36 and 31,

and holding the sheets or sections. 38 and 31 in relation to provide thespace 39. therebetween, which space corresponds and'operates similarlyto the apertures IS in the form previously described.

In the embodiment illustrated in Fig. '7, the

wear-reducing layer 35 is illustrated as having an opening and acontinuous -border around said opening. In Fig. 8, a similarly shapedwear-protective layer may be employed to attach the fore and afttransfer sections 36 and 31 together.

While in the description, the transfer sheets referred to are ordinarilyof paper coated with carbon transfer material, it is to be understoodthat the sheet material may be other than paper and the transfermaterial thereon may be such as desired which is capable of manifoldingimprint by typing, as usual in typewriting machines.

It will be further perceived that the strippersheets of this inventionmay be substituted for the ordinary carbon sheets which are fastened tothe shiftable carbon holder, as described in said Wernery and SmithPatent No. 1,132,055, and

that upon said substitution, the typewriting machine of the Wernery andSmith patent, and other similar machines, may be operated as describedinsaid patent, including the'operation of lifting the platen to straightenout the worksheets and carbon leaves, -or the Wernery and Smith machinemay be operated and-relative shift between the carbons and worksheetseffected without lifting said platen.

The numerals 40 indicate transfer sheets according to the presentinvention, butsomewhat longer than the transfer sheets shown" in Fig. 5,

in order that they may be associated with the reciprocally shiftable,carbon holder All of said Wernery and Smith machine.

Referring to Figs. l5, l6, l7 and 18, it will be understood that theparts of machine illustrated in these figures represent the same partsof, the machine in said Wernery and Smith patent. Reference is made tosaid Wernery and Smith patent for a full description of such machine, it

being felt that it is unnecessary to embody theentire machine herein. Itmay be noted, however, that in order to provide for adjustment of thepoint at which the carbon holder 4! is stopped in its forwardreciprocal'movementin the Wernery and Smith machine, the upstanding pinabutment or stop member 42 (Fig. 1 6) is provided and is secured by aneasily manipulated pin 43, the pin 43 being adjustable back andforthtodifferentpositions in the slot 44 in the frame member 45 of themachine. It will be perceived that by adjusting the position of theabutment 42, the position at which the holder 4! is arrested on itsforward movement may be selectively changed. In Fig. 17 the holder isshown in position against the abutment 42. Any satisfactory adjustmentabutment or stopper may be used. I v

In the long transfer sheets 40, which preferably have straight sidemargins, as indicated at 46, apertures 47 are provided which are similarto and have a similar purpose as the apertures l8 in the transfer sheetsi! heretofore described.

Theapertures 41 in, the two transfer sheets are in superposed registrywith each other. Another set of apertures 48 disposed rearwardly of theapertures 41 may also be provided, the apertures Fig. 16 represents theposition of the holder and the transfer sheets and associated worksheetsin position ready for typing at the beginning of a set of worksheets,the previously typewritten set haidng been shifted or stripped relativeto the transfer sheets and tornoif or parted onthe knife blade 49, asindicated in dotted lines in Fig. 16. In Fig. 1'7 the associatedworksheets and transfer sheets have been shifted forwardly asa unit,typing of the advance set of forms having been finished, and it will beseen that the apertures 41 in the transfer sheets occupy a positiontangent to the pull-line as hereinbefore described. In the Fig. 17position, the advance ends of the worksheets may be grasped withoutgripping the transfer sheets, and shifted forwardly relative to andwhile the transfer sheets are at rest, these latter being prevented fromforward movement by the stop 42. During this relative shifting movement,the feed rolls 50 of the Wernery and Smith machine should be in shiftedposition so as not to clamp the worksheets against the platen. Thus therelative shift between the transfer sheets and the worksheets to effectstripping is accomplished without lifting the cylindrical platen 5| ofmachines of the Wernery and Smith type.

Or said platen 5| may be lifted by the mechanism provided therefor, asdescribed in the Wernery and Smith patent, from the dotted line positionindicated at to the upper full line position indicated at 5|, andthereby permit the associated worksheets and transfer sheets tostraighten out, whereupon the worksheets may be advanced relative to thetransfer sheets to bring the next set of worksheet forms intomanifolding relation with the transfer sheets, or the transfer sheetsmay be shifted rearwardly by the handle 52a (shown in dotted lines)which may be fastened to the transfer sheet holder 4| for that purpose.

Numeral 53 indicates a spring motor and drum serving to coil a belt orcord 54 running over a pulley 5.5, the other end of the belt I54 beingattached to the holder 4| for retracting the holder in an automaticmanner. It is to be understood that the automatically retractingoperation may be dispensed with, as'for instance, by removing the belt54 from attachment to the holder 4|.

Referring to Fig. 14, in addition to the apertures l8, as shown in Fig.5, one of the transfer sheets I! is provided with an additionalworksheet-threading aperture 58. The arrangement in Fig. 14 is merelyexemplary of a different disposition of the apertures from thatilllustrated in Fig. '5. In Fig. 14, the underlying worksheet may bethreaded through the apertures-i8 in both the upper and lower transfersheets i1, and the next adjacent worksheet threaded through the.aperture 56- in the outer transfer sheet I1 only. The position of, thechecking device 25 relative to the apertures l8 and 56, in thearrangement of Fig. 14, is preferably such that the aft set of aperturesl8 may arrive at the point on the platen tangent to the pull-line whenthe checking device is in arrested position between the platen 2 and therear paper table i I.

In utilizing the invention in the Wernery and Smith type of machine,when the foremost sections 80 of the transfer sheets 40 ahead of theadvance apertures 41 have become depleted of transfer material, saidforemost sections 60 may be torn off or otherwise parted transverselythrough the apertures 41, as on the line 6|, thus eliminating the usedsections 40. There-. upon the worksheets may be threaded throughapertures 48, and the sections 62 of the sheets 40 become the foresections thereof. The slot in the frame should be long enough to permitadjustment of the arresting abutment 42 to position to'check advance ofholder ll at or after the advance margins of the apertures 48 arrive ata point on the platen tangent to the pull-line, as heretofore described.It is furthermore to be understood that in the embodiment of Fig. 15instead of employing two sets of apertures longitudinally separated, asingle set may be employed centrally of the lengths of sheets 40,whereupon the transfer sheets may be reversed end for end, and eitherend connected to the holder 4|. Since certain changes may be made in theabove construction and different embodiments of the invention could bemade without departing from the scope thereof, it is intended that allmatter contained in the above description orv shown in the accompanyingdrawings shall befolding relation to the worksheets either end 4foremost.

2. A carbon stripper having means, including a work-sheet-threadingopening in a carbon sheet of the stripper cooperable for disposingtransfer material of said carbon sheet in manifolding relation to theworksheets either end foremost, and means, including a stripper-checkingdevice, cooperable in either said relation of the transfer material.

3. A carbon stripper having a plurality of relatively superposed carbonsheets, means, including a worksheet-threading opening in each of aplurality of said carbon sheets cooperable for disposing transfermaterial of said carbon sheets in operative manifolding relation to theworksheets either end foremost; and means, securing said carbon sheetstogether, controlling the position of said openings in different sheetsrelative to each other.

4. A carbon stripper having a plurality of relatively superposed carbonsheets, means, including a worksheet-threading opening in each of aplurality of said carbon sheets cooperable for disposing transfermaterial of said carbon sheets.

in operative manifolding relation to the worksheets either end foremost,means, securing said carbon sheets together, controlling the position ofsaid openings in different sheets relative to each other, and means,including a stripperchecking device, cooperable in either said relationof the transfer material.

5. A supply device for the purpose described including, in combination,a plurality of continuous worksheets in superposed relation to eachother, a plurality of relatively superposed carbon sheets each having anopening through the sheet and transfer material fore and. aft of saidopening, one or more of said worksheets passing through an opening in acarbon sheet, the fore transfer sections of said carbon sheets facingone side of the worksheet or sheets passing through said opening and theaft transfer sections facing the opposite side thereof, and meanssecuring said carbon sheets together controlling the relative positionbetween said openings of different said carbon sheets.

6. A supply device for the purpose described including, in combination,a plurality of continuous worksheets in superposed relation to eachother, a plurality of relatively superposed, carbon sheets each havingan opening through the sheet and transfer material fore and aft of saidopening, one or more of said worksheets passing through an opening in acarbon sheet,

the fore transfer sections of said carbon sheets facing one side of theworksheet or sheets passing through said opening and the aft transfersections facing the opposite side thereof, means securing said carbonsheets together controlling the relative position between said openingsof 'diiierent said. carbon sheets, and a stripperchecking deviceconnected to said carbon sheets.

7. A stripper for the purpose described having,

in combination, a stripper-sheet, a stripperchecking device, and meanscooperable for threading a worksheet through said strippersheet andselectively disposing either the section of stripper-sheet in advance ofwhere said worksheet isthreaded or the section in rear thereof inmanifolding relation to said worksheet, each said section havingtransfer material for manifolding.

8. A stripper for the purpose described having an opening for passage ofa worksheet through the stripper, and having transfer material fore andaft of said opening, said stripper being,reversible end-for-end andcooperable in either reversed position for manifolding cooperation withaworksheet passing through said opening, a checking device, and meanscooperable for connecting said checking device to the stripperv andselectivelydisposing the checking device in checking relation in eitherof the reversedpositions of said stripper.

9. A stripper for the purpose described, having, in combination, anintegral stripper-sheet provided with an aperture for threading aworksheet through said stripper sheet, the sections of said strippersheet fore and aft of said aperture having transfer material formaniiolding.

10. A stripper for the purpose described having, in combination, anintegral stripper-sheet provided with an aperture for threading aworksheet .through said sheet, the sections of said sheet fore and aftof said aperture having transfer material for manifolding, and meanscooperable for attaching said stripper sheet to the stripper in eitherof two positions, in one of which it is in reversed position,end-for-end, relative to its other position.

11. A stripper for the purpose described having, in combination, anintegral stripper-sheetv provided with an aperture for threadingaworksheet through said sheet, 'the sections of said sheet fore and aftof said aperture having provided with an aperture for threading a workasheet through said sheet, the sections of said sheet fore and aft ofsaid aperture having transfer material for manifolding, a checkingdevice, and means cooperable for attaching said stripper-sheet to saidchecking device either fore or aft of said aperture.

13. A stripper for the purpose described having, in combination, aplurality of relatively superposed stripper-sheets each provided with anaperture for threading a worksheet -the're-' through and each havingtransfer material fore and aft of said aperture therein, and meanscontrolling the relation of said stripper-sheets to each other.

14. A stripper for the purpose described having, in combination, a;plurality of relatively superposed, integral carbon sheets, havingapertures therein for threading worksheets therethrough, means securingsaid carbon sheets together, and a checking device attached to saidstripper and disposed at a distance from said apertures.

15. A stripper for the purpose described having, in combination, achecking-device and a plurality of relatively superposed carbon sheetseach having a worksheetthreading aperture through the carbon material soas to bound the apertures fore and aft thereof by carbon material.

16. A stripper for the purpose described having, in combination, achecking-device, and a plurality of relatively superposed carbon sheetseach having a worksheet-threading aperture through the carbon materialso as to bound the aperture fore and aft thereof by carbon material, andmeans selective for connecting said checking-device to said stripper anddisposing said checking. device either fore or aft of said apertures.

17. A stripper for typewriting machines having, in combination, aplurality of relatively superposed carbon sheets, each; having anaperture for threading a worksheet through the carbon sheet, andtransfer material fore and aft of said aperture, shiftable to differentpositions around the roller platen of the machine and t0 position inwhich the advance boundaries of the apertures lie parallel to thestraight pull-line of worksheet sections ahead of Said apertures, and achecking-device cooperable to check advance shift of said aperturedcarbon sheets with said boundaries in said parallel relation to saidpullline.

18. A stripper for typewriting machines hav- 'ing, in combination, aplurality of relatively superposed carbon sheets each having an aperturefor threading a worksheet through the carbon sheet, and transfermaterial fore and aft of said aperture, shiftable to difierent positionsaround the roller platen of the machine and to position in which theadvance boundaries of the apertures lie parallel to the straightpull-line of worksheet sections ahead of said apertures,

a checking-device cooperable to check advance shift of said aperturedcarbon sheets with said advance boundaries in said parallel relation tosaid pull-line, and means controlling the relation of saidstripper-sheets to each other.

19. A stripper for typewriting machines having, in combination, aplurality of relatively superposed carbon sheets, each having anaperture for threading a worksheet through the carbon sheet, andtransfer material fore and aft of said aperture, shiftable to difierentpositions around the roller platen of the machine and to position inwhich the advance boundaries of the apertures lie in a tangent to'saidplaten at the point where the worksheets are to be ad'- vanced relativeto said carbon sheets, and means attaching said apertured carbon sheetstogether and controlling the position of the apertures of differentsheets relative to each other and said tangent point.

20. A stripper for typewriting machines having, in combination, aplurality of relatively superposed carbon sheets, each having anaperture for threading a worksheet through the car- I bon sheet,transfer material fore and aft of said aperture, .shiftable to differentpositions around the roller platen of the machine and to position inwhich the advance boundaries of the apertures lie in a tangent to saidplaten at the point where the worksheets are to be advanced relative tosaid carbon sheets, means attaching said apertured carbon sheetstogether and controlling the position of the apertures of differentsheets relative to each other and said tangent point, and achecking-device cooperable to check advance shift of said carbon sheetsat or after said advance boundaries reach said tangent relation.

21. A stripper for typewriting machines having, in combination, aplurality of relatively superposed carbon sheets each having an aperturefor threading a worksheet through the carbon sheet and transfer sectionsfore and aft of said aperture, each of area suflicient for manifoldingcooperation with worksheet sections, ahead of said apertures, shiftableto different positions around the roller platen of the machine and toposition in which the advance boundaries of said apertures lie parallelto the straight pullline of worksheet sections .ahead of said apertures,a checking device cooperable to check advance shift of said aperturedcarbon sheets with said advance boundaries in said parallel relation tosaid pull-line, and means cooperable for attaching said carbon sheets tosaid checking device and selectively disposing either the fore or aftedges of said apertures in advance position.

22. A stripper for typewriting machines having, in combination, aplurality of relatively superposed carbon sheets each having an aperturefor threading a worksheet through the carbon sheet and transfer sectionsfore'and aft of said aperture, each of area suficient for manifoldingcooperation with worksheet sections, ahead of said apertures, shiftableto different positions around the roller platen of the machine and toposition in which the advance boundaries of said apertures lie in atangent to saidplaten at the point where the Worksheets are to beadvanced relative to the carbon sheets, a checking device cooperable tocheck advance shift of said apertured carbon sheets after said advanceboundaries reach said tangent relation, and means cooperable forattaching said carbon sheets to said checking device and selectivelydisposing either of said transfer sections in advance position relativeto the other,

23. A stripper for the purpose described having, in combination, a packof manifolding sheets, each having a worksheet threading apertureintermediate its ends; each section fore and aft of, and from close tothe edge of, said aperture being a transfer section, the oppositetransverse bounding margins of said apertures having a layer ofrelatively thin, flexible material for reducing wear on the edges of theapertures, and a checking device secured on said pack and-disposedremote from said apertures.

24. A stripper for the purpose described having, in combination, a packof manifolding sheets, each having a worksheet threading apertureintermediate its ends, each section fore and aft and from close to theedge of said aperture being a transfer section, the opposite transversebounding margins of said apertures having a layer of relatively thin,flexible material for reducing wear on the edges of the apertures,and achecki'ng device secured on said pack and disposed remote from saidapertures, said apertures being relatively wide longitudinally of thesheets for free and unobstructed simultaneous passage of a relativelylargenumber of worksheets through each apertured sheet.

25. A stripper for the purpose described having, in combination, a packof manifolding sheets, each having a worksheet threading apertureintermediate its ends, each section fore and aft of and from close tothe edge of said aperture being a transfer section, the oppositetransverse bounding margins, of said apertures having a layer ofrelatively thin, flexible material for reducing wear on the edges of theapertures, and a checking device secured on said pack and disposedremote from said apertures, the length of said manifolding sheets beingsufiicient to provide a foldable, transverse, securing extension at eachend of the sheets in addition to the transfer sections aforesaid.

26. A stripper for the purpose described having, in combination, a packof manifolding sheets each having a worksheet threading apertureintermediate its ends, each section fore and aft of and from close tothe edge of said aperture being a transfer section, the oppositetransverse bounding margins of said apertures having a layer ofrelatively thin, flexible material for reducing-wear on the edges of theapertures, a checking device secured on said pack and disposed remotefrom said apertures, the length of said manifolding sheets beingsufficient to provide a foldable, transverse, securing extension at eachend of the sheets in addition to the transfer sections aforesaid, saidapertures being located equidistant from said foldable extensions, thefolded extensions being in superposed contiguous relation to each other,and said checking device comprising a sheet-bracing bar detachablyafllxed to said folded extensions at one .end of the pack, and aworksheet-supporting loop underlying said. pack.

27. A supply device for use in typewriting machines and the like having,in combination, a plurality of relatively superposed, continuousrworksheets, a stripper having a plurality of relatively superposedcarbon sheets with apertures through the carbon sheets, and carbon,

material fore and aft of theapertures, underlying worksheets lyingthreaded through said apertures and in interleaved, manifolding relationwith the fore-sections of said carbon sheets and all lying outside ofsaid carbon sheets opposite the aft-sections thereof, said carbon sheetsfirmly secured together against relative longitudinal movement at apoint aft of said apertures so as to maintain said apertures atpredetermined distances from said point where secured, the length of anddisposition of carbon material on said carbon sheets being such thatthey may be secured together and disposed rela-

